21000491

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{823}}^1$

素因数の和:938

約数の個数: 16

約数和(自身を含む): 23731200

約数和(自身を除く): 2730709

約数列:

[1, 17, 19, 79, 323, 823, 1343, 1501, 13991, 15637, 25517, 65017, 265829, 1105289, 1235323, 21000491]

約数ペア:

[(1, 21000491), (17, 1235323), (19, 1105289), (79, 265829), (323, 65017), (823, 25517), (1343, 15637), (1501, 13991)]